Frank mossberg



(No Model.)

F MOSSBERG VISE FOR MILLING MACHINES.

No. 503,327. Patented Aug. 15, 1893.

.QRQQQL UNITED STATES PATENT OFFICE.

FRANK MOSSBERG, OF ATTLEBOROUGH, MASSACHUSETTS, ASSIGNOR TO THE MOSSBERG MANUFACTURING COMPANY, OF SAME PLACE.

VlSE FOR MILLING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 503,327, dated August 15, 1893.

Application filed October 24, 1892. Serial No.449,'763. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRANK MOSSBERG, of Attleborough, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Vises for Milling-Machines, &c.; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of i vises used to hold the work on milling machines, planers, and upright drilling machines. It is fully illustrated in the accompanying drawlugs.

Figure tie a top view of the vise, with a small part of the screw bearing broken away. Fig. 2 represents a vertical cross-section taken on line 00, as, Fig. 1. Fig. 3 shows the under side of the sliding block or jaw of the vise. Fig. 4 is a side view of one of the sliding bars.

The main parts of the vise are those usually found in this class of Vises, as, a bed plate A, having a raised portion 0, at one end, that constitutes the stationary jaw of the vise. A block D,sliding on the bed-plate A, is the movable jaw, and a raised portion S, at the opposite end of the bed plate to jaw 0, holds the bearing of the screw 19, that moves the jaw D. The bed-plate A, is cast in one piece with the jaw C and the screw bearing S, and a foot piece J, by which the vise is held on the table when in use.

To form the guides that hold the sliding jaw D, to the bed-plate, two holes a, a, are made through the bed-plate lengthwise, and channels 0, o, are formed by cutting through from the upper side of the bed-plate to the holes a, a, all the way between the jaw G, and bearing S. Into these channels 0, the projecting ridges cl, d, on the under side of the jaw D, are fitted to slide. After the holes a, and channels 0, are made and the ridges cl, are fitted into them, the jaw D, is clamped onto the bed'plate and the boring tool is again run into the holes a, 0L, and the inner faces of the ridges d, that project a little way into the holes, are cut away by the tool, so as to form parts of the circles of the holes a. Short, plain pieces of bar steel g, g, of the proper size to fit into the holes a, a, are put into those holes, and screws t, t, are inserted down through the jaw D, and screwed into the bars g, 9', so as to hold the bars to the jaw firmly, and form the sliding connection between the jaw D, and the bed-plate A.

To close the jaws so as to hold articles between them, a screw 19, is used, that is usually held in a bearing in a raised portion S, with a cap screwed down over it; but to avoid the making of this cap, a hole 1', is made through the solid part of the rise S, to form the bearing for the screw, and then countersunk on the inner side to receive the collar 6', made on the screw 19. This collar e, has a semi-circular groove h, made in its periphery, and a pin hole a, is made in the part S, in such position that a pin 0, inserted in the hole, will project one-half into the groove h. The screw 13, is fitted to screw into the block or jaw D, and has a portion 1;, projecting out beyond the part S, squared to receive acrank or wrench to turn it by. There is no shoulder on the screw 19, out-side of the bearing, and after having screwed clear into the jaw D, the outer end of the screw can be put through from the inside, and the pin 0, inserted, that will answer the same purpose as the usual outside shoulder, in holding the screw in when opening the jaws. In this way of making the guide slides for the movable jaw, the foot can be cast solid with the bedplate, and it also has the advantage over the V-slicles with gibs that are used in various shapes for this purpose, because it has no angular slides exposed to injury from use, and can be made at less expense. The ends of the bars g, g, as they slide forward and back in the holes, will push the dirt and chips that may fall in before them, out at the ends of the holes, and keep them clear.

Having thus described my improvements,I claim as my invention- In a vise for use on milling machines and other like purposes, slides for the movable jaw, consisting of plain round bars fitted to slide in holes made in the bedplate, and connected with said jaw by fastenings extending through channels made in the bed-plate, substantially as specified.

FRANK MOSSBERG.

Witnesses:

BENJ. ARNOLD, JAMES E. ARNOLD. 

